Strip edge finishing machine



June 7, 1966 J. T. PICKARD STRIP EDGE FINISHING MACHINE 2 Sheets-Sheet 1Filed Jan. 4,

lA/VE/VTO/P JOSEPH 7: PICK/1R0 ATTORNEY .EIIII June 7, 1966 J. T.PICKARD STRIP EDGE FINISHING MACHINE 2 Sheets-Sheet 2 Filed Jan. 4, 1965United States Patent 3,254,568 STRIP EDGE FINISHING MACHINE Joseph T.Pickard, River-ton, N.J., assignor to Joseph Pickards Sons (10.,Philadelphia, Pa., a corporation of Pennsylvania Filed Jan. 4, 1965,Ser. No. 423,270 10 Claims. (Cl. 90-24) This invention relates to stripedge finishing machines and more particularly to machines for providingthe desired finished edge contour or shape on metal strips of indefinitelength.

The present practice in forming metal strips is to cut the strip fromwide material and then move the material lengthwise between-files, rollsor gangs of tools disposed to give the edge contours desired, aplurality of passes usually being required. No wholly satisfactoryapparatus for continuous and rapid finishing of the edges of metalstrips is now available.

It is the principal object of the present invention to provide a machinefor quickly and smoothly finishing the edges of strip material toprovide the desired shape thereof, including rounded, beveled, angled orflat.

It is a further object of the present invention to provide a strip edgefinishing machine which is simple in construction, sturdy, readilyadapted for change to the desired edge shape for the strip of anydesired width or gage, and with which precision shaping can be efiected.

It is a further object of the present invention to provide a strip edgefinishing machine in which the strip to be finished is continuouslyadvanced between spaced cutters on opposite edges 7 thereof, the cuttershaving abutments in opposed relation thereto and the cutters andabutments being relatively laterally adjustable for precision finishing.

It is a further object of the present invention to provide a strip edgefinishing machine for metal strips in which the strip material isadvanced under tension to 'facilitate the edge finishing.

Other objects and advantageous features of the invention wil be apparentfrom the description and claims.

The nature and characteristic features of the invention will be morereadily understood from the following description taken in connectionwith the accompanying drawings forming part thereof, in which:

FIGURE 1 is a top plan view of a strip edge finishing machine inaccordance with the invention;-

FIG. 2 is a vertical longitudinal sectional view taken approximately onthe line 22 of FIG. 1;

FIG. 3 is a view in perspective, and enlarged, of one type of cuttingtool employed in the machine of the present invention;

FIG. 4 is a vertical transverse sectional view taken approximately onthe line 4-4 of FIG. 1;

FIG. 5 is a vertical transverse sectional view taken approximately onthe line 55 of FIG. 1;

ture disclosed without departing from the spirit of the invention.

Like numerals refer to like parts throughout the several 7 views.

Referring now more particularly to the drawings the machine inaccordance with the invention preferably inice cludes an elongated frame10 with a horizontal bed plate 11 and having therebeyond at one end .adriving or take-up roll 12 supported on and secured to a shaft 13, theshaft 13 being driven in any desired manner such as by an electric motor14. The bed plate 11 has therebeyond at the opposite end thereof asupply roll 15 for the strip material 16, the edge of which is, to befinished. The roll 15 is supported on and secured to a shaft 17. Theshaft 17 can be driven in any desired manner, by being coupled to theshaft 13, or by its own electric motor 18. The shaft 13 and 17 areactuated so that the peripheral 'or linear speedof the strip 16 arrivingat the roll .12 is slightly greater than the peripheral or linear speedof the strip 16 leaving the supply roll 15, to maintain the strip 16under tension during its :advance.

The bed plate 11 has carried thereon, on a mounting block 20, a pair ofspaced horizontal guide rollers 21 for enaga'gement by the edge of thestrip 16. The rollers are journaled on vertical shafts 22.

An adjustable block 23 has spaced horizontal guide rollers 24 carried onvertical shafts 25, the block 23 being held against the strip 16 by theengagement thereagainst,

of an adjusting screw 26 which extends through a vertical upright bar 27secured to the block mounting 20.

The bed plate 11, beyond the block mounting 20, has a first edge cutterand abutment assembly 30 which includes transverse frame blocks 31secured to the bed plate 11 in any desired manner such as by screws 32.

The frame blocks 31 have secured thereto an elongated longitudinallydisposed roller carrying plate 33. The plate 33 has a plurality ofvertically disposed flanged abutment rollers 34 held by snap rings 35and supported on horizontal shafts 36. The rollers 34 (see FIG. 7) havecylindrical faces 37 for engagement with horizontal portions of thestrip 16 and disc faces 38 for engagement with vertical edge portions ofthe strip 16.

The shafts 36 are preferably removably held by set screws' 39 in theplate 33 for replacement by other sizes of rollers 34 if required for adifferent size of strip.

While the rollers 34 can be arranged as desired it is preferred that tworollers 34 be disposed above and one roller 34 be disposed Ibelow thestrip 16.

The rollers 34 (see FIG. 7) are preferably backed up by roller thrustbearings 40 carried between inner and outer rings 41 and 42 and engagingback-up spacer rollers 43.

The cutter assemblyv 30 has a fixed transverse guide plate 45 held onthe bed plate 11, with an adjustable mounting plate 46 slidably carriedon the guide plate 45 such as by a dovetail 47. The mounting plate 46 ispositioned by a screw 48, rotatable by a hand wheel 49, the screw 48having an' indexing head 50 and engaged in a nut (not shown) in theplate 46 rearwardly of a fixed sleeve 51 carried by an upright bar 52 onthe bed plate 11. The sleeve 51 preferably has a scale 53 thereon forcomparison with the indexing head 50.

The mounting plate 46 has a recess 55 within which a cutting tool 56 isinserted. The tool 56 is held against vertical movement by a clampingplate 57 and bolts 58 and is horizontally transversely adjusted #by anadjusting screw 59.

The cutting tool 56 is preferably of ultra hard material such astungsten carbide and has a cutting contour 60 complemental to the edgeshape-desired on the strip 16. The cutting tool 56 can have a face 61providing back rake and a face 62 providing relief.

The bed plate 11, beyond the first edge cutter and abutment assembly 30,.has a second edge cutter and abutment assembly 65, which includestransverse frame blocks 131 secured to the bed plate 11 in any desiredmanner such as by set screws 32.

The frame blocks 131 have secured thereto an elongated longitudinallydisposed cutting tool carrying plate 133. The plate 133 has a recess 155within which a cutting tool 156 is inserted. The tool 156 is identicalto or similar to the tool 56, dependent upon the edge shape desired andis held against vertical movement by a clamping plate 157 and bolts 158and is horizontally transversely adjusted by an adjusting screw 159.

An elongated roller carrying plate 133 is provided having a plurality ofvertically disposed abutment rollers 134, identical to the rollers 34,held by snap rings 35 and supported on horizontal shafts 136. Therollers 134 have faces 37 and faces 38 as previously described. Theshafts 136 are held by set screws 139 in the plate 133 for replacementby other sizes of rollers 134 if desired. The rollers 134 are backed upby thrust bearing 40 carried between inner and outer rings 41 and 42.

The plate 133 is secured to an adjustable mounting plate 146 similar tothe mounting plate 46 which is slidably carried on a guide plate 145 bya dovetail 147. The mounting plate 146 is positioned Iby a screw 148rotatable by a hand wheel 149. The screw 148 has an indexing head 150and is engaged in a nut (not shown) in the plate 146 rearwardly of afixed sleeve 151 carried by an upright bar 152 on the bed plate 11. Thesleeve 151 has a scale 153 for comparison with the indexing head 150.

In FIG. 8, a plurality of metal strips with their edges finished areshown in transverse cross section. The strip 16 is formed with roundededges by the use of cutting tools 56 as shown in FIG. 3 on each edge.The strips 16a and 16b are formed with flat edges formed by flat edgedcutting tools with their cutting edges disposed at the proper angles toprovide such edges. The strip 160 is formed by a cutting tool having aV-shaped notch of the proper complemental shape. The strip 16d is formedby a recessed cutting tool having a fiat cutting edge portion to providea square edge.

The bed plate 11 can also have a horizontal hold down roller 66rotatably carried by a mounting block 67 secured to the bed plate 11 bybolts 68.

Each of the cutting tools can have cutting fluid delivered thereto inany desired manner to facilitate the edge cutting with cooling and chipremoval.

The mode of operation will now be pointed out.

A strip 16 with raw or unfinished edges is supplied from the supply roll15, and passes between the pairs of rollers 21 and 24 which reduce anytendency to sidewise displacement. The strip 16 with one raw edgeengaging the faces 38 of the abutment rollers 34 and held againstvertical movement by the cylindrical faces 37 of the rollers 34 has theother raw edge cut by the cutting tool 56 to the desired finished shapeand contour so that no further finishing of that edge is necessary.

As the strip 16 advances the finished edge thereof engages the 'faces138 of the rollers 134 which hold the other or unfinished edge forcutting by the cutting tool 156.

The cutting tool 56 in its spacing from the abutment rollers 34, and theabutment rollers 134 in their spacing from the cutting tool 156 can bequickly and easily adjusted by movement of the hand wheels 49 and 149.

As the strip 16 advances it passes under the hold-down roller 66 and tothe driving roll 12. As previously pointed out the strip 16 between theroller 15 and 12 is maintained under tension by the differential speedof those rolls.

As illustrative, one type of strip can be of a width of three-quarter ofan inch and of a thickness in the range from 0.025 inch to 0.125 inch.Speeds of strip movement of the order of four hundred feet per minuteand higher can be attained with carbon steel. These illustrations aremerely by way of example as other thickness and widths of strip materialcan also have finished edges applied thereto.

It will thus be seen that simple but effective apparatus is provided foreffecting the objects of the invention.

I claim: 1. A strip edge finishing machine for elongated strip materialcomprising a strip feed member, means for positively driving said stripfeed member, a strip supply member spaced from said strip feed member,first and second edge forming and abutment assemblies for engagingopposite edges of said strip interposed between said strip feed memberand said strip supply member, each of said assemblies having rotatingabutment rollers with faces for engagement with respectively oppositeedges of the strip and forming members having portions for engagementwith respectively opposite edges of the strip, the forming member of oneof said assemblies having adjustable mounting members for adjusting theposition of the forming member portion with respect to the edge of thestrip.

2. A strip edge finishing machine as defined in claim in which theabutment rollers of one of said assemblies have adjustable mountingmembers for adjusting the position of the abutment rollers with respectto the strip.

3. A strip edge finishing machine as defined in claim in which saidabutment rollers are mounted on shafts having longitudinal axestransverse to the strip, and

said rollers have cylindrical faces engaging opposite faces of the stripand preventing strip displacement.

4. A strip edge finishing machine as defined in claim in which saidabutment rollers are mounted on shafts having longitudinal axestransverse to the strip, and

said rollers have disc faces engaging a strip edge.

5. A strip edge finishing machine as defined in claim in which saidabutment rollers are mounted on shafts having longitudinal axestransverse to the strip,

said rollers have cylindrical faces engaging opposite faces of thestrip, and

said rollers have cylindrical faces engaging a strip edge.

6. A strip edge finishing machine as defined in claim in which saidrollers have thrust bearings with which they are in engagement.

7. A strip edge finishing machine as defined in claim in which saidabutment rollers for each assembly include a plurality of rollers withat least one on each side of the strip,

said rollers each has a cylindrical face portion for engagement with oneface of the strip, and

said rollers each has a face portion for engagement with the same edgeof the strip.

8. A strip edge finishing machine as defined in claim in which saidforming members are cutters, and

said cutters are elongated blocks with cutting edges complemental to theedge of the strip to be formed.

9. A strip edge finishing machine as defined in claim in which theadjustable mounting members include a hand wheel.

10. A strip edge finishing machine as defined in claim 2 in which theadjustable mounting members include a hand wheel.

No references cited.

.WILLIAM W. DYER, JR., Primary Examiner.

G. A. DOST, Assistant Examiner.

1. A STRIP EDGE FINISHING MACHINE FOR ELONGATED STRIP MATERIALCOMPRISING A STRIP FEED MEMBER, MEANS FOR POSITIVELY DRIVING SAID STRIPFEED MEMBER, A STRIP SUPPLY MEMBER SPACED FROM THE SAID STRIP FEEDMEMBER, FIRST AND SECOND EDGE FORMING AND ABUTMENT ASSEMBLIES FORENGAGING OPPOSITE EDGES OF SAID STRIP INTERPOSED BETWEEN SAID STRIP FEEDMEMBER AND SAID STRIP SUPPLY MEMBER, EACH OF SAID ASSEMBLIES HAVINGROTATING ABUTMENT ROLLERS WITH FACES FOR ENGAGEMENT WITH RESPECTIVELYOPPOSITE EDGES OF THE STRIP AND FORMING MEMBERS HAVING PORTIONS FORENGAGEMENT WITH RESPECTIVELY OPPOSITE EDGES OF THE STRIP, THE FORMINGMEMBER OF ONE OF SAID ASSEMBLIES HAVING AJUSTABLE MOUNTING MEMBERS FORADJUSTING THE POSITION OF THE FORMING MEMBER PORTION WITH RESPECT TO THEEDGE OF THE STRIP.